Drilling-machine



(N0 Mmiel.) 3 sheets-sh et 1.

A. W. KINNEY.

DRILLING MACHINE.

No. 558,497. Patented Apr. 21, 1896.

(No Model.) I 3 Sheets8heet 2,

A. W. KINNEY. DRILLING MACHINE. No. 558,497. Patentd Apr. 21, 1896.

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A. W. 'KI NNEY.

DRILLING MACHINE.

No.558,497. Q I -,1%enQ dApr 21,1896. Iii 1 WIlllllillllllllllllwgwm m lu @llllllllllillllllflk ms a. hy wsammuw NITED STATES PATENT OFFICE.

ALFRED w. KINNEY, OF HARTFORD, CONNECTIC T, ASSIGNOR, BY MESNE ASSIGNMENTS, To THE PRATT & WHITNEY COMPANY, OF SAME PLACE, AND AUGUSTE J. OEHRING, OF CHICAGO, ILLINOIS.

DRILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 558,497, dated April 21, 1896. Application filed July 5, 1892- Serial No. 438,880. (No model.)

To all whom it may concern: This head has attached to one face adjust- Be it known that I, ALFRED W. KINNEY, a able arms 12, corresponding in number to the citizen of the United States, residing at Hartspindles 8, and in the inner ends of these arms ford, in the county of Hartford and State of are formed bearings 13, which hold spindles 5 Connecticut, have invented certain new and 14. The arms are preferably slotted and held 5 5 useful Improvements in Drilling-Machines, in place by the pivot-bolts 15, that pass of which the following is a full, clear, and through the slots into the head 10, and by exact specification. bolts 16, that pass through the slots in the The invention relates to the class of maarms, and slots 17 cut through the head on arcs IO chines provided for tapping, boring, or drillhaving centers concident with the pivot-bolts, 6o ing simultaneously a number or group of so that the arms may be adjusted radially to holes, sockets, or perforations in plates or the desired position when the bolts are loosother articles; and the object is to provide a ened and also may be swung or oscillated on simple and cheap machine of this class in the pivot-bolts to permit of a tangential adwhich the position of the taps, angers, or drills j ustment of the spindles 14, the ends of which, or the arrangement of their number and size toward the tail of the bed, are provided with can be easily and quickly adjusted to operate a chuck 35 of any common form for grasping in the desired manner on any structure within and holding the taps, angers, or drills with the limits of the capacity of the machine. which it is intended to operate.

20 Referring to the accompanying drawings, The spindles 8 are each connected with the Figure 1 is a side elevation of a machine emcorresponding spindles let by means of the exbodying the invention. Fig. 2 is a face view, tensible shafts 18, consisting of the telescopic lookingfrom the head-stock, of the head bearrods 19 and tubes 20, flexible or ball-anding the driving mechanism for the multiple socket joints 21 being used to connect the 2 5 spindles. Fig. 3 is a vertical section through ends of the shafts 18 with the spindles, to althis head. Fig. 4 is a face view looking from low free adjustment of the spindles which the tail of the machine, of the head bearing bear the boring-tools. the adjustable chucks. Fig. 5 is a vertical The ordinary feed-screw 22, driven by the section of the same. Fig. 6 is a face view of usual feed from the gears on the live-spindle 0 the work-holding carriage, and Fig. 7 is a in the head-stock, is connected by bevel-gears vertical section of the latter. with a worm 23, meshing with a worm-wheel In the views, 1 indicates a lathe-bed of or- 24 at the tail of the bed, and the shaft of this dinary form and construction, havingaheadwheel is provided with a thread that fits a stock 2 with the usual live-spindle, drivingthreaded nut 25 on the bottom of the carriage 3 5 cone,-back and feed gears common in ma- 26, that hasamovement in the usualmanner chines of this class. upon the ,ways on top of the bed. To arms Supported on theshears of the lathe near the 27, that project from this common lathe-carhead-stock is a head 3, preferably consisting riage, is secureda plate or upright frame 29, of a hollow circular casting 4 and a circular having a holding device 30 for securing the 0 plate 5, that hold between them a gear 6, havpiece to be operated upon and openings 31 for ing a hub with a chuck 7, adapted to be 0011- the passage of the drills to the work. In the pled with the live-spindle of the head-stock. form shown this holding device consists of a Any desired number of fixed bearings are pair of bolts 32, united at their outer ends by formed in this casting and plate, and in these a yoke 33 in a threaded socket in which turns 5 turn spindles 8, that bear pinions 9 in mesh a set-screw 34:, by means of which the work with the central gear 6. At a distance from is held with the face to be operated on next this head, which holds the spindles driving the plate in position to receive the drills. mechanism, the shears of the bed support an The arms 12, bearing the spindles, can be annular head 10, that is preferably connected easily and quickly set by any one into the de- 50 so as to be rigid with the head 3 by bolts 11. sired position with relation to each other, and zoo any desired number of the same or different sizes of drills, angers, or taps may be employed, within the capacity of the machine, for drilling, boring, or tapping the required group of holes, perforations, or sockets in the plate or article which is clamped to the frame 29, borne by the carriage 26. \Vhen power is applied to the driving-cone, theli ve-spindle revolves the gear meshing with the pinions, so that the drills through the spindles and extensible jointed shafts are rotated to operate upon the work which is fed to them by the motion of the carriage that is moved by the feed mechanism described, as is the ordinary engine-lathe carriage.

Any desired number of any convenient size of drills may be employed, which, by means of the simple, cheap, convenient, and readilyoperated construction shown, that can be attached to any engine-lathe, may be quickly adjusted by any person to bore a group of holes of any arrangement, size, or number in any article.

I claim as my invention- 1. In combination in a drilling-machine, an annular head bearing arms holding rotary spindles, said arms being held to the head by means of a pivot whereby the spindles may be oscillated toward or from the axis of the head, and a clamp for securin g the arms in the desired adjustment, substantially as specified.

2. In combination in a drilling-machine, an annular head bearing arms holding rotary spindles, said arms being provided with longitudinal slots and held to the head by means of pivots which pass through the slots, and clamping-bolts which pass through the slots in the arms and slots in the head whereby the arms have a rotary and oscillatory movement, substantially as specified.

3. In a drilling-machine in combination, a bed supporting a stock with a live-spindle bearing a gear, a head supporting a plural number of shafts bearing pinions in mesh with the gear and a head supporting arms bearin g rotary spindles, said arms being held to the head by means of pivots whereby the spindles held by the arms may be oscillated toward or from the axis of that head, with clamps connecting the arms with the head for securing the arms in the desired adjustment, and flexible shafts connecting the pinion-shafts with the spindles borne by the oscillating arms, substantially as specified.

4. In a drilling-machine in combination, a bed supporting a stock with a live-spindle bearing a gear, a head supporting a plural number of shafts bearing pinions in mesh with the gear and a head supporting arms bearing rotary spindles, said arms being provided with longitudinal slots and held to the head by means of pivots which pass through the slots and by clamping-bolts which pass through the slots in the arms and through circular slots in the head whereby the arms may have an oscillatory and a reciprocating movement, and flexible shafts connecting the pinion-shafts with the spindles borne by the oscillating and reciprocating arms, substantially as specified.

5. In a drilling-machine in combination, a bed supporting a stock with a live-spindle bearing a gear, a fixed head supporting a plural number of shafts bearing pinions in mesh with a gear, and a head connected with the fixed head and supporting arms bearing rotary spindles, said arms being held to the head by means of a pivot whereby the spindles held by the arms may be oscillated toward and from the axis of that head, with clamps connecting the arms with the head for securing the arms in the desired adjustment, extensible shafts with flexible joints connecting the pinion-shafts with the spindles borne by the oscillating arms, a frame movably supported by the bed, a work-holdin g device connected with the frame, and a feed-screw rotated from the live-spindle and connected with the frame for feeding the same, substantially as specified.

ALFRED W. KIN N EY. lVitn esses:

H. R. WILLIAMS, ARTHUR H. BRONSON. 

